Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Operating Rails in Kubernetes
Search
Kir Shatrov
April 17, 2018
Programming
3
460
Operating Rails in Kubernetes
My talk at RailsConf 2018.
Kir Shatrov
April 17, 2018
Tweet
Share
More Decks by Kir Shatrov
See All by Kir Shatrov
Running Jobs at Scale
kirs
1
210
RailsClub 2016
kirs
2
310
Performance regressions in Ruby on Rails Core
kirs
0
210
Building a toolkit to detect performance regressions in Ruby on Rails core
kirs
3
5.6k
Развертывание веб-приложений и фреймворк Capistrano
kirs
1
280
Capistrano 3
kirs
4
2.8k
Other Decks in Programming
See All in Programming
OSS開発者という働き方
andpad
5
1.6k
モバイルアプリからWebへの横展開を加速した話_Claude_Code_実践術.pdf
kazuyasakamoto
0
290
Portapad紹介プレゼンテーション
gotoumakakeru
1
130
『リコリス・リコイル』に学ぶ!! 〜キャリア戦略における計画的偶発性理論と変わる勇気の重要性〜
wanko_it
1
620
テストカバレッジ100%を10年続けて得られた学びと品質
mottyzzz
0
150
フロントエンドのmonorepo化と責務分離のリアーキテクト
kajitack
2
150
マイコンでもRustのtestがしたい その2/KernelVM Tokyo 18
tnishinaga
2
2.4k
A Gopher's Guide to Vibe Coding
danicat
0
190
私の後悔をAWS DMSで解決した話
hiramax
4
170
250830 IaCの選定~AWS SAMのLambdaをECSに乗り換えたときの備忘録~
east_takumi
0
350
Honoアップデート 2025年夏
yusukebe
1
880
ソフトウェアテスト徹底指南書の紹介
goyoki
1
120
Featured
See All Featured
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
34
3.1k
The Pragmatic Product Professional
lauravandoore
36
6.8k
A Modern Web Designer's Workflow
chriscoyier
696
190k
Six Lessons from altMBA
skipperchong
28
4k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
1.5k
How to Think Like a Performance Engineer
csswizardry
26
1.8k
Java REST API Framework Comparison - PWX 2021
mraible
33
8.8k
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
A Tale of Four Properties
chriscoyier
160
23k
Thoughts on Productivity
jonyablonski
69
4.8k
Transcript
Operating Rails in Kubernetes Kir Shatrov
1. Intro to Kubernetes 2. Rails in Kubernetes 3. Shopify’s
migration story
Containers are awesome! *
Containerizing Rails: Techniques, Pitfalls, & Best Practices by Daniel Azuma
Tomorrow 3:30pm
None
None
app01 app02 app03
app01 app02 app03
None
None
None
Smart container scheduling for better utilization
Smart container scheduling for better utilization
Smart container scheduling for better utilization
Kubernetes basics: Pod
Kubernetes basics: Deployment
web jobs Kubernetes basics: Deployment
None
None
web jobs Kubernetes basics: Deployment
web jobs Kubernetes basics: Deployment
web jobs Kubernetes basics: Deployment
Managing Resources
YAML
None
YAML apply when changed
YAML store in repository
None
Deploy process controlling servers
Deploy process sequentially applying commands by SSH
Capistrano sequentially applying commands by SSH
None
kubectl apply --file web.yml
kubectl apply --file jobs.yml
Controlling servers vs describing configuration
Controlling servers Describing configuration running commands remotely comparing output with
expected not prone to failures push configuration poll for it to apply abstracts from physical machines self-healing
Controlling servers Describing configuration running commands remotely comparing output with
expected not prone to failures push configuration poll for it to apply abstracts from physical machines self-healing
None
It's easy to run a container, but not Rails
The Twelve-Factor app
None
Disposability and termination
Web requests
Background Jobs
Long-running jobs
None
Abort and re-enqueue
Concurrency scale out via the process model
None
Assets
rake assets:precompile
Assets Shipped in container
Database Migrations
Migrations as a part of deploy
Migrations as a part of deploy
Asynchronous Migrations
1. Change code and add a migration 1. Add a
migration 2. Change code
1. Change code and add a migration 1. Add a
migration 2. Change code
Asynchronous Migrations
None
None
Secret Management
Secrets in the environment
Secrets in a container
Secrets in a container
Rails 5.2 Credentials
None
ENV[‘RAILS_MASTER_KEY’]
The Twelve Factors Let workers terminate gracefully Migrations as a
part of deploy can be fragile Rails 5.2 Credentials + Kubernetes Secrets
Kubernetes at Shopify
None
Resource specs in YAML
None
None
None
kubectl apply --file web.yml
None
None
Let robots help humans to migrate apps Developers don’t have
to write YAML configs kubernetes-deploy brings visibility into rollout progress
None
Kubernetes helps organizations to efficiently schedule workload and save resources
It’s not magic, it only schedules and runs your containers Things you need to know about Rails
None
None
Thanks! @kirs @kirshatrov